Designer artificial environments for membrane protein synthesis

Conary Meyer, Alessandra Arizzi, Tanner Henson, Sharon Aviran, Marjorie L. Longo, Aijun Wang and Cheemeng Tan ()
Additional contact information
Conary Meyer: Davis
Alessandra Arizzi: Davis
Tanner Henson: Davis
Sharon Aviran: Davis
Marjorie L. Longo: Davis
Aijun Wang: Davis
Cheemeng Tan: Davis

Nature Communications, 2025, vol. 16, issue 1, 1-18

Abstract: Abstract Protein synthesis in natural cells involves intricate interactions between chemical environments, protein-protein interactions, and protein machinery. Replicating such interactions in artificial and cell-free environments can control the precision of protein synthesis, elucidate complex cellular mechanisms, create synthetic cells, and discover new therapeutics. Yet, creating artificial synthesis environments, particularly for membrane proteins, is challenging due to the poorly defined chemical-protein-lipid interactions. Here, we introduce MEMPLEX (Membrane Protein Learning and Expression), which utilizes machine learning and a fluorescent reporter to rapidly design artificial synthesis environments of membrane proteins. MEMPLEX generates over 20,000 different artificial chemical-protein environments spanning 28 membrane proteins. It captures the interdependent impact of lipid types, chemical environments, chaperone proteins, and protein structures on membrane protein synthesis. As a result, MEMPLEX creates new artificial environments that successfully synthesize membrane proteins of broad interest but previously intractable. In addition, we identify a quantitative metric, based on the hydrophobicity of the membrane-contacting amino acids, that predicts membrane protein synthesis in artificial environments. Our work allows others to rapidly study and resolve the “dark” proteome using predictive generation of artificial chemical-protein environments. Furthermore, the results represent a new frontier in artificial intelligence-guided approaches to creating synthetic environments for protein synthesis.

Date: 2025
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DOI: 10.1038/s41467-025-59471-1

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